var assert = require("assert")
var Buffer = require("safer-buffer").Buffer
var join = require("path").join
var iconv = require(join(__dirname, "/../"))

var baseStrings = {
  empty: "",
  hi: "Привет!",
  ascii: "\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" +
           " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f",
  rus: "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя",
  additional1: "ЂЃ‚ѓ„…†‡€‰Љ‹ЊЌЋЏђ‘’“”•–—™љ›њќћџ ЎўЈ¤Ґ¦§Ё©Є«¬\xAD®Ї°±Ііґµ¶·ё№є»јЅѕї",
  additional2: "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ё╓╔╕╖╗╘╙╚╛╜╝╞╟╠╡Ё╢╣╤╥╦╧╨╩╪╫╬©",
  additional3: " ЁЂЃЄЅІЇЈЉЊЋЌ­ЎЏ№ёђѓєѕіїјљњћќ§ўџ",
  untranslatable: "£Åçþÿ¿"
}

var encodings = [{
  name: "Win-1251",
  variations: ["win1251", "Windows-1251", "windows1251", "CP1251", 1251],
  encodedStrings: {
    empty: Buffer.from(""),
    hi: Buffer.from("\xcf\xf0\xe8\xe2\xe5\xf2!", "binary"),
    ascii: Buffer.from(baseStrings.ascii, "binary"),
    rus: Buffer.from("\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff", "binary"),
    additional1: Buffer.from("\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf", "binary")
  }
}, {
  name: "Koi8-R",
  variations: ["koi8r", "KOI8-R", "cp20866", 20866],
  encodedStrings: {
    empty: Buffer.from(""),
    hi: Buffer.from("\xf0\xd2\xc9\xd7\xc5\xd4!", "binary"),
    ascii: Buffer.from(baseStrings.ascii, "binary"),
    rus: Buffer.from("\xe1\xe2\xf7\xe7\xe4\xe5\xf6\xfa\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf2\xf3\xf4\xf5\xe6\xe8\xe3\xfe\xfb\xfd\xff\xf9\xf8\xfc\xe0\xf1\xc1\xc2\xd7\xc7\xc4\xc5\xd6\xda\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd2\xd3\xd4\xd5\xc6\xc8\xc3\xde\xdb\xdd\xdf\xd9\xd8\xdc\xc0\xd1", "binary"),
    additional2: Buffer.from("\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf", "binary")
  }
}, {
  name: "ISO 8859-5",
  variations: ["iso88595", "ISO-8859-5", "ISO 8859-5", "cp28595", 28595],
  encodedStrings: {
    empty: Buffer.from(""),
    hi: Buffer.from("\xbf\xe0\xd8\xd2\xd5\xe2!", "binary"),
    ascii: Buffer.from(baseStrings.ascii, "binary"),
    rus: Buffer.from("\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef", "binary"),
    additional3: Buffer.from("\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff", "binary")
  }
}]

describe("Test Cyrillic encodings", function () {
  encodings.forEach(function (encoding) {
    var enc = encoding.variations[0]
    var key = "hi"
    describe(encoding.name + ":", function () {
      it("Convert from buffer", function () {
        for (var key in encoding.encodedStrings) {
          assert.strictEqual(iconv.decode(encoding.encodedStrings[key], enc),
            baseStrings[key])
        }
      })

      it("Convert to buffer", function () {
        for (var key in encoding.encodedStrings) {
          assert.strictEqual(iconv.encode(baseStrings[key], enc).toString("binary"),
            encoding.encodedStrings[key].toString("binary"))
        }
      })

      it("Try different variations of encoding", function () {
        encoding.variations.forEach(function (enc) {
          assert.strictEqual(iconv.decode(encoding.encodedStrings[key], enc), baseStrings[key])
          assert.strictEqual(iconv.encode(baseStrings[key], enc).toString("binary"), encoding.encodedStrings[key].toString("binary"))
        })
      })

      it("Untranslatable chars are converted to defaultCharSingleByte", function () {
        var expected = baseStrings.untranslatable.split("").map(function (c) { return iconv.defaultCharSingleByte }).join("")
        assert.strictEqual(iconv.encode(baseStrings.untranslatable, enc).toString("binary"), expected) // Only '?' characters.
      })
    })
  })
})
